When I am trying to update the plugin list I've got this error
Can you help me?
thanks
Code
Erreur #0:
exception 'OMV\ExecException' with message 'Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C; apt-get update 2>&1' with exit code '100': Ign file: InRelease
Ign file: Release.gpg
Ign file: Release
Ign file: Translation-en
Hit http://security.debian.org jessie/updates InRelease
Hit http://packages.openmediavault.org erasmus InRelease
Ign http://shell.ninthgate.se squeeze InRelease
Hit https://downloads.plex.tv ./public InRelease
Get:1 https://downloads.plex.tv ./public/main amd64 Packages [3488 B]
Ign http://shell.ninthgate.se squeeze Release.gpg
Get:2 https://downloads.plex.tv ./public/main Translation-en [471 B]
Hit http://security.debian.org jessie/updates/non-free Sources
Hit http://httpredir.debian.org jessie-backports InRelease
Get:3 https://downloads.plex.tv ./public/main Translation-en [471 B]
Get:4 https://downloads.plex.tv ./public/main Translation-en [471 B]
Get:5 https://downloads.plex.tv ./public/main Translation-en [471 B]
Get:6 https://dl.bintray.com jessie InRelease
Ign https://dl.bintray.com jessie InRelease
Get:7 https://downloads.plex.tv ./public/main Translation-en [471 B]
Ign https://downloads.plex.tv ./public/main Translation-en
Ign http://shell.ninthgate.se squeeze Release
Get:8 https://dl.bintray.com jessie InRelease
Ign https://dl.bintray.com jessie InRelease
Hit http://security.debian.org jessie/updates/non-free amd64 Packages
Hit http://packages.openmediavault.org erasmus/main amd64 Packages
Get:9 http://httpredir.debian.org jessie-backports/main amd64 Packages/DiffIndex [27.8 kB]
Hit http://security.debian.org jessie/updates/non-free Translation-en
Hit https://dl.bintray.com jessie Release.gpg
Get:10 http://httpredir.debian.org jessie-backports/contrib amd64 Packages/DiffIndex [25.0 kB]
Hit http://security.debian.org jessie/updates/main Sources
Get:11 http://httpredir.debian.org jessie-backports/non-free amd64 Packages/DiffIndex [22.9 kB]
Hit http://security.debian.org jessie/updates/contrib Sources
Get:12 http://httpredir.debian.org jessie-backports/contrib Translation-en/DiffIndex [7468 B]
Hit http://security.debian.org jessie/updates/main amd64 Packages
Hit http://security.debian.org jessie/updates/contrib amd64 Packages
Get:13 http://httpredir.debian.org jessie-backports/main Translation-en/DiffIndex [27.8 kB]
Hit http://security.debian.org jessie/updates/contrib Translation-en
Hit http://security.debian.org jessie/updates/main Translation-en
Hit https://dl.bintray.com jessie Release.gpg
Ign http://packages.openmediavault.org erasmus/main Translation-en
Get:14 http://httpredir.debian.org jessie-backports/non-free Translation-en/DiffIndex [17.2 kB]
Hit https://dl.bintray.com jessie Release
Hit https://dl.bintray.com jessie Release
Err http://shell.ninthgate.se squeeze/main amd64 Packages
404 Not Found
Ign http://shell.ninthgate.se squeeze/main Translation-en
Get:15 https://dl.bintray.com jessie/main amd64 Packages [35.0 kB]
Get:16 https://dl.bintray.com jessie/main Translation-en
Get:17 https://dl.bintray.com jessie/main amd64 Packages [18.2 kB]
Get:18 https://dl.bintray.com jessie/main Translation-en
Get:19 https://dl.bintray.com jessie/main Translation-en
Get:20 https://dl.bintray.com jessie/main Translation-en
Get:21 https://dl.bintray.com jessie/main Translation-en
Get:22 https://dl.bintray.com jessie/main Translation-en
Get:23 https://dl.bintray.com jessie/main Translation-en
Get:24 https://dl.bintray.com jessie/main Translation-en
Get:25 https://dl.bintray.com jessie/main Translation-en
Ign https://dl.bintray.com jessie/main Translation-en
Get:26 https://dl.bintray.com jessie/main Translation-en
Ign https://dl.bintray.com jessie/main Translation-en
Fetched 185 kB in 3s (49.4 kB/s)
W: Failed to fetch http://shell.ninthgate.se/packages/debian/dists/squeeze/main/binary-amd64/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.' in /usr/share/openmediavault/engined/rpc/apt.inc:219
Stack trace:
#0 /usr/share/php/openmediavault/rpc/serviceabstract.inc(528): OMVRpcServiceApt->{closure}('/tmp/bgstatusfF...', '/tmp/bgoutputFn...')
#1 /usr/share/openmediavault/engined/rpc/apt.inc(223): OMV\Rpc\ServiceAbstract->execBgProc(Object(Closure))
#2 [internal function]: OMVRpcServiceApt->update(NULL, Array)
#3 /usr/share/php/openmediavault/rpc/serviceabstract.inc(124): call_user_func_array(Array, Array)
#4 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('update', NULL, Array)
#5 /usr/sbin/omv-engined(536): OMV\Rpc\Rpc::call('Apt', 'update', NULL, Array, 1)
#6 {main}